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In this paper, we study the effect of collaboration between nodes for direction of arrival (DOA) estimation in a full connected wireless acoustic sensor network (WASN) where the position of the nodes is unknown. Each node is equipped with a linear microphone array which defines a node-specific DOA with respect to a single common target speech source. We(More)
We compare and contrast the approaches and key features of two proposals for fault-tolerant MPI: User-Level Failure Mitigation (UFLM) and Fault-Aware MPI (FA-MPI). We show how they are complementary and also how they could leverage each other through modifications and/or extensions. We show how to "weaken" and extend ULFM to help integrate it with FA-MPI,(More)
MPI is insufficient when confronting failures. FA-MPI (Fault-Aware MPI) provides extensions to the MPI standard designed to enable data-parallel applications to achieve resilience without sacrificing scalability. FA-MPI introduces transactions as a novel extension to the MPI message-passing model. Transactions support failure detection, isolation,(More)